
Tessl turns natural-language specifications into production code and keeps that code self-maintaining to simplify building and operating AI-native software. It uses AI and large language models to…

Tessl turns natural-language specifications into production code and keeps that code self-maintaining to simplify building and operating AI-native software. It uses AI and large language models to…
Product: AI-native developer platform for managing, versioning, evaluating and distributing agent skills
Founder & CEO: Guy Podjarny
Funding: $125M raised (seed + Series A), reported Nov 14, 2024
Headquarters / Location: London (company described as London-based in reporting)
Developer productivity and governance for AI agents/skills (skill registry, versioning, security scanning, auditability, evaluation).
2024
Software Development
Seed round reported as part of the combined $125M raise
Series A reported as part of the combined $125M raise and reported valuation of $500M+
“Raised $125M with participation from Index Ventures (lead on Series A), Accel, GV (Google Ventures), and Boldstart”
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Tessl is a fast-growing Series A startup based in London, founded by Guy Podjarny. We’ve raised over $100M from world-class investors including Index Ventures, Accel, GV, and Boldstart, and in 2025 we were ranked #2 in Sifted EU’s B2B SaaS Rising 100 and #20 in Sifted's AI 100.
At Tessl, we are building the context layer for AI coding agents, and a platform for AI-native software development. As an early member of the team, you’ll help shape how we build, scale and support a company operating at the edge of AI and software development.
Overview of Role
We're looking for a Field Engineer who lives and breathes the AI space. Someone already deep in the AI developer ecosystem, building with it, talking about it, and pushing what's possible with it every day.
In this role, you'll be a power user of our product and a trusted technical partner to our customers. That means running deeply tailored demos, designing solutions that map to how engineering teams actually work, and helping developers and platform teams understand what AI-native software development can really look like. You'll engage deeply with the community, and bridge the field back to our product and engineering teams.
What You'll Do
What We're Looking For
Salary and Benefits
We offer a competitive salary commensurate with experience and skills. We provide health insurance which extends to partners and dependents, as well as a pension.
Our office is based a couple of minutes away from King's Cross station. It's also pet friendly, and we make sure to have regular socials such as team lunches, drinks and more.
Application Process
Here’s an outline of what you can expect during our interview process:
We care deeply about the warm, inclusive environment we’re building at Tessl and we value diversity – we welcome applications from those typically underrepresented in tech. If you like the sound of this role but are not totally sure whether you’re the right person, do apply anyway!
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